Writing Instrument Stationery Type General Pen Ink Sac Replaceable Refill Ink Bag Ink Cartridge

Label:Yes Note: blue is erasable ink, black and dark black are non-erasable ink Quantity: 50PC Name: Pen can replace ink bag Size: 50mm Applicable type: General purpose Packing: OPP bag Ink diameter: 2.6mm, 3.4mm Package Includes:50pc* pen ink

Notes: 1. Due to light and other reasons, there may be differences in color. 2. Products are manual measurement, there is slightly measuring error. 3. Thank you for your kindly understanding.